Bolt-lock.



No. 649,395. Patented May 8, |900. P. 0. E. BUUD-REAUX.

BOLT LUCK.

(Application led Oct. 2, 1899.)

(No Model.)

A 7TOHNEYS Unrrnn STATES Param Ormea.

PAUL O. E. BOUDREAUX, OF TI'IERIOT, LOUISIANA, ASSIGNOR OF ONEIIALF TO LUKE BOUDREAUX, OF SAME PLACE.

BOLT-LOCK.

SPECIFICATION forming part of Letters Patent No. 649,395, dated May 8, 1900.

Application tiled OGtOUl 2, 1899. Serial No. 732,313. (No model.)

To all whom, t may con/cern:

Be it known that I, PAUL O. E. BoUDREAUX, of Theriot, in the parish of Terre Bonne and State of Louisiana, have invented a new and useful Improvement in Bolt-Locks, of which thefollowing is a specification.

Myinvention relates to bolts and means for locking the same; and it has for its object a bolt which can be easily and yet securely locked in place and one which can be cheaply made.

The invention consists in certain details of construction, which I shall iirst describe, and then point out in the appended claim.

Reference is to be had to the accompanying drawings, in which like characters of reference indicate corresponding parts.

Figure 1 is a perspective view of n1yin1- proved bolt with the locking-screw in position therein. Fig. 2 is aside view of the same, partlybroken away and with the screw detached; and Fig. 3 is a perspective view illustrating the locking screw and key detached.

My improved bolt 10 is formed at one end with an integral head 11 and at its other end has a tapering threaded bore 12, which is divided by four radial and tapering slots 13. Each section of this end of the bolt thus di vided is provided with a shoulder 14.-, which together form a bearing for a washer or the like when the bolt is in place.

The tapered screw 15, formed with a head 16 and an opening 17, extending therethrough below the head, is adapted to be screwed into the threaded bore 12 until the opening 17 comes within one of the slots 13, when the key 1S is inserted through the opening 17 and ex; tends beyond the screw, preferably on both sides, so that when said key is in place any turning of the screw will cause the key to en# 4o gage with a side wall of a slot, and thus prevent the retraction of the screw. It should be especially observed that the screw 15 will be kept in place at different points within the bore 12 just so long as the key 18 lies within 45 viding said bore into sections, each of the sec tions thus formed being provided with a shoulder, and a tapering screw arranged to work in the said bore and formed with a head and a transverse opening therethrough below said head, the said opening being adapted to receive a key which projects beyond said screw to engagement with the side walls of two op positie slots when the screw is in place in the bore, as and for the purpose set forth.

In testimony whereof I have signed my name to this-specification in the presence of two subscribing witnesses. y

PAUL O. E. BOUDREAUX.

Vitnesses:

HENRY M. BOURG, ARTHUR A. ARsnNAUX. 

